Burning kiln



Jun@ 2, N3. G. H. GARRISON BURNING KILN FiledApril 15,` 1925 2sheets-sneeze 1 @enige 1%., @arl-130m june. 24, 1930. G. H. GARRlsoN1,767,281-

BURNI NG KI LN Filed April 15, 1925 2 Sheets-Shea?l 2 Patented June 24,1930 ynutren.;raras* FFE@ 'Y kGEORG-lil HENRY GARRISON, 0F BRIDGEPORT,CONNECTICUT, ASSIGNOR TO REMING TON ARMS COMPANY, INC., A CORPORATION 0FDELAWARE p l l BURNING KILN Application led April 15, 1925. Serial No.23,396.

This invention relates toV kilns for the manufacture of cement or limeor other materials formed by fusing ,or burning, and in particular tomeans for removing clinker rings and other obstructions adhering to theinside of the kiln. I

It is well known that in the manufacture of cement and other similarproducts which are fused or burned in a kiln that the wall of the kilnadjacent to the burning end is apt to become coated with the fusedclinker. The tendency to coating as Well as thecharacter of the coatingformed vary with the cement forming materials found in dierentlocalities, as well as with the process of manufacture. Under someconditions the coating may take the shape of a heavy ring, formed atdistances varying from 20 t0 40 feet, from the burning end of the kiln.If not broken down and removed such a ring continues to increase thethickness and soon becomes a veryserious Obstruction.

Hitherto, such rings have been removed byl various means, such, forexample, as a heavy jet of water under high pressure. Usually when sucha water bar is used a sloto-r key is cut thru the ring to the wall ofthe kiln. by this or any other of the means which have been usedhitherto, is a slow and eX- pensive process requiring the stopping and.cooling of the kiln, and the loss of time in the operation of the kilnwhichin the case of a large ring has often amounted to as much asthirty-six hours.

One object of the present invention is to provide a novel and effectivemeans for quickly removing clinker rings without the necessity ofcoo-ling the kiln, and with th loss of but very little time.

A further object of the invention is to provide a novel method forremoving clinker rings, this method including the use of a speciallydesignedfrearm.

A further object of the invention is to provide novel means for removingclinker rings, said means including a firearm adaptzd to be mounted uponthe end of a burning riln. Y

A further object of lthe invention is to The removal of a ring,

provide in combination with vburning kiln means for mounting a firearmthereon.

lith these and other objects in view the invention consists in the novelcombinations and arrangements of parts which are illustrated in thedrawings and will be Yhereinafter more fully described.

n the drawings Fig. l is a perspective of the endl of a cement kilnshowing the devices ofpthis invention attached thereto.

Fig. 2 is as a side elevation, partly in section of the end of cementkiln having the present invention applied thereto.

Fig. 3 is an inverted perspective view of the bed plate to which theclinker removing gun is attached. v

Fig. 4 is a fragmentary perspective of Vthe part of the mountingmechanism which is attached to the kiln. I

Fig. 5A is a fragmentary perspective of a slightly modified form ofmounting means for attachment of the kiln.

Fig. 6 is a fragmentary perspective o'f another modification of themounting means.

The usual cement kiln comprises a large cylindrical chamber, ordinarilymade of heavy boiler plate l() lined with fire brick or other heatresisting material l1, and arranged for rotation about itsl longitudinalaxis, which axis is inclined slightly tothe horizontal. The cementforming materials are introduced into the upper end ofthe kiln and inthe rotation of the kiln move toward the lower or burning end, at whichheat is supplied by the combustion of powdered coal or oil, introducedin an air blast. The burning end of the kiln may be closed by a shield12 constructed of a refractory material, such as hre brick.V In someinstances the outside of the shield is covered with boiler plate. Anopening 13 varranged at a convenient height in the shield permitsobservation of the operation of the kiln.

Clinker rings are most apt toV form at distances varying from twenty to.forty feet from the burning endvof the kiln. For the removal of theseobstructions the present invention contemplates the provision of aspecially `designed firearm, and the mounting about one inch in diameterand weigh about three ounces and be'nred with a velocity of TheseV ofsuch a firearm on the shield in position to shoot thru the sight opening13. The mounting means 1s, of course, arranged to permit the necessaryrecoil of the gun, and

to provide for lateral and vertical shift of the point Vof aim.Provisionis also made for quickly placing the gun in position, andremoving it when the obstruction has been -clearedraway- To this endcertain parts are permanently attached to the shield, and the gun itselfis provided with mounting devices adapted to be quickly and easilyfittede to the support-s on the shield.

The construction of the gun'proper'fmayY be greatly varied. Mostexcellent results. V`have'been secured with'a gun of the general type ofashoulder rifle, but of somewhatVl larger caliber, and designed to firea projectile at a lower velocity than a modern rifle. The projectile forexample may be about nine hundred feet per second.

i dimensions, however, are illustrative rather than restrictive; Afirearm provided with a bolt action77 breec1 e l 's l b l n mec iannmias een shown. Surrounding the barrel 14 at spaced 'positions are theupstanding ends 15 and 16 of 'a yoke 17, these ends being surmounted by'sights 18 and 19; 4i recoil spring 2O is interposed between the forwardend 15 of the yoke and a collar 21, which is held by a nut 22V threadedtothe muzzle of the barrel. The vrear end 16 of the yoke normally restsagainst a collar 23, which engages the fori ward end of the receiver 24.When fired the'gun recoils through the yoke end openinffs and isrestored b f the recoil sorinO` 20.

,n l D The yoke 16 is supported from and pivoted toa table 25.Y Thepivot stud comprises a' l flat head 26, and a shank 27 provided with akey 26 these lparts being adapted to fit in an opening provided thereforin the yoke.

Below the shank 27 the stud comprises a sevc-l vtion 29 of reducedldiameter, which passes through the table 25 and-a washer 30'. The

endv section of the stud is of reduced diameter, whereby the nut 31abuts a shoulder 32 to prevent drawing yoke `16 and plate 23 the forwardcorners of the table 25, and a pivot and supporting rod 39 extendsbetween` and projects `aslight distance beyond the angles tov formtrunnions `4() and 41. The ends V42 of a bifurcated strut 43 are`pivoted to the rod 89adjacent to the inner vin a suitable plate.

connected by a turn buckle 49 comprising a hand wheel 491 to facilitateits manipulation. By adjustment of the turn buckle 49 the rear end ofthe table is raised or lowered, the table pivoting about rod 39, and the4pointingof the gunis shifted accordingly.

The trunnions 40 and 41 are received in 'inclined bearing slots 50 and51 in apair of supports 52 and 53 which are mounted on the shield. Inthe form'of mounting which has been' illustrated the'` supports are ofangular shape comprising horizontally eX- `tending flanges 54 and 55adapted to be vbolted or otherwise secured to a vstiftening plate 56which is secured to members mounted directly on the shield. In apreferred embodiment of th-e invention the stiffener plate is bolted toan beam 57 which extends across the shield, and is secured'ne'ar its endto the shield frame 58. 1f the shield is faced with metal the 1 beam maybe' replaced by angles (Figs. 5 Aand 6) secured to the stiffener plate56, 'and having webs 59 which lie against the face of the shield, whichwebs may extend upward from the plate, as illustrated in Fig. 5 ordownwardly from the plate as illustrated in Fig. 6.

It will be noted that the gun, the table and parts attached thereto mayberemoved merely by liftingthe trunnions 40 and 41 out of the bearingslots and 51. In its normal operation the kiln is thus not encumered bythe gun, and the gun may be stored Then the gun is needed all thatisnecessary is tolplace the trunnions in the bearing slots, and permitend 43 of the strut 43 vto drop against the face of the shield.V The gunis then ready to fire, being aimed at the same'pointas before itsremoval; Thel point ofv aim being shifted vertically by manipulation ofthe turn buckle hand wheel'491, and laterally by swinging the gun andits yoke about the pivot 27, the hand screw 86 being loosened to permitthis movement, and tightened again with the gun in the desiredpositions.

l The devices shown and'described are to be considered as illustrativerather than restrictive, and itis to be understood that various1.changesin construction may be made without departing from the invention asdefined in the following claims.

llO

I claim:

1. Means for mounting a firearm on a burning kiln comprising a yokehaving ends Which encirclethe barrel of said firearm, and a recoilspring abutting one of said ends.

2. Means for mounting a firearm on a burning kiln comprising a tableattached to the firearm and provided with trunnions, a supporting strutand a tie rod extending downward from said table and joined at theirlower ends to form a rigid frame, the lower end of said frame beingadapted to bear against the kiln, thereby supporting the firearm inplace.

3. Means for mounting a firearm on a burning kiln, comprising a tableattached to the firearm and provided with trunnions and .a supportingframe adapted to bear against a part of the kiln, and devices mounted onsaid kiln comprising slotted bearings adapted to receive said trunnions.

4. Means for mounting a firearm on a burning kiln comprising asupporting member secured to the kiln, a stiiiener plate secured to saidsupporting member, a pair of' angles secured 'to said stiffener plate,inclined bearing slots in said angles and devices associated With afirearm comprising trunnions adapted to be received in said inclinedbearing slots.

5. In apparatus of the character described, in combination, a firearm, atable, a yoke pivoted'to said table and having ends encircling thebarrel of said firearm, an abut- I ment near the end of the barrel ofthe firearm, a recoil spring interposed between one end of said yoke andsaid abutment, and means for retaining said firearm in differentpositions relative to said table.

6. In apparatus of the character described, in combination, a firearm, asupporting table, means for pivotally securing said irearm to saidtable, means for holding said firearm in any desired position withrespect to said table, a burning kiln, means for pivotally supportingsaid table on said burning kiln, and means for retaining said table atanly desired position With respect to said kin.

7. Means for mounting a firearm on a burning kiln comprising a table, afirearm pivoted to said table, an arcuate slot in said table, meansassociated with said firearm eX- tending through said slot, devices forsecuring said means in any desired position in said slot, and means forpivotally supporting said table on a burning kiln.

GEORGE HENRY GARRISON.

